Bug#62008: ld leaves hidden/internal symbols in the symbol table (Patch Included)
Martin von Loewis
loewis@informatik.hu-berlin.de
Sun Apr 9 13:56:00 GMT 2000
> 1. Does your patch implement STV_PROTECTED?
AFAICT, yes. There is not that much to do, though: the assembler has
to recognize the .protected directive, and set st_other
appropriately. objdump and friends are now capable of printing the
symbol. If the static linker sees two different visibilities for a
symbol, it takes the stronges one.
The real semantics of STV_PROTECTED (i.e. non-preemptability) must be
implemented in the dynamic linker.
> 2. As I said before, STV_HIDDEN can be treated as local symbol in
> the symbol versioning. It should work with glibc.
I still question that claim. STV_HIDDEN symbols must go through the
PLT, or PIC code won't work.
Regards,
Martin
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